public static string ToSql <TEntity>(this IQueryable <TEntity> query) where TEntity : class
{
QueryCompiler queryCompiler = (QueryCompiler)QueryCompilerField.GetValue(query.Provider);
QueryModelGenerator modelGenerator = (QueryModelGenerator)QueryModelGeneratorField.GetValue(queryCompiler);
Remotion.Linq.QueryModel queryModel = modelGenerator.ParseQuery(query.Expression);
IDatabase database = (IDatabase)DataBaseField.GetValue(queryCompiler);
DatabaseDependencies databaseDependencies = (DatabaseDependencies)DatabaseDependenciesField.GetValue(database);
QueryCompilationContext queryCompilationContext = databaseDependencies.QueryCompilationContextFactory.Create(false);
RelationalQueryModelVisitor modelVisitor = (RelationalQueryModelVisitor)queryCompilationContext.CreateQueryModelVisitor();
modelVisitor.CreateQueryExecutor <TEntity>(queryModel);
string sql = modelVisitor.Queries.First().ToString();
return(sql);
}
public static RelationalQueryModelVisitor CompileQuery <TEntity>(this IQueryable <TEntity> self)
{
var q = self as EntityQueryable <TEntity>;
if (q == null)
{
return(null);
}
var fields = typeof(Database).GetTypeInfo().DeclaredFields;
var queryModelGenerator = new QueryModelGenerator(new DefaultMethodInfoBasedNodeTypeRegistryFactory(), new EvaluatableExpressionFilter());
var queryCompiler = (QueryCompiler)ReflectionCommon.QueryCompilerOfEntityQueryProvider.GetValue(self.Provider);
var database = (Database)ReflectionCommon.DatabaseOfQueryCompiler.GetValue(queryCompiler);
var dependencies = (DatabaseDependencies)ReflectionCommon.DependenciesOfDatabase.GetValue(database);
var factory = dependencies.QueryCompilationContextFactory;
var queryModel = queryModelGenerator.ParseQuery(self.Expression);
var modelVisitor = (RelationalQueryModelVisitor)database.CreateVisitor(factory, queryModel);
modelVisitor.CreateQueryExecutor <TEntity>(queryModel);
return(modelVisitor);
}